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Scalp cyst with heterotopic brain tissue
D W Pryce1, M Khine, J L Verbov
1Department of Dermatology, Royal Liverpool Children's Hospital, U.K.
The British Journal of Dermatology
|August 1, 1993
Summary
A rare congenital scalp lesion in a newborn infant was identified as heterotopic brain tissue. This glial cell origin finding is important for diagnosing neonatal scalp abnormalities.
Area of Science:
- Developmental biology
- Neuropathology
- Pediatric dermatology
Background:
- Congenital scalp lesions require careful differential diagnosis in neonates.
- Understanding the origin of these lesions is crucial for appropriate management.
- Rare developmental abnormalities can manifest as external physical findings.
Observation:
- A female infant presented at birth with a multilocular lesion on the scalp.
- No underlying skull defect was detected in association with the lesion.
- The lesion was externally visible without immediate signs of neurological impairment.
Findings:
- Histological examination confirmed the presence of neural tissue within the scalp lesion.
- Immunohistochemical staining showed positivity for S-100 and Glial Fibrillary Acidic Protein (GFAP).
- The absence of neurofilament staining indicated a glial cell origin, consistent with heterotopic brain tissue.
Implications:
- Heterotopic brain tissue is a rare cause of neonatal scalp masses.
- This condition typically does not impact neurological development in affected infants.
- Clinicians should include heterotopic brain tissue in the differential diagnosis of congenital scalp lesions.